Vacuum cleaner



FIG. 1 is a perspective view of a vacuum cleaner in accordance with the present design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a rear perspective view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a vacuum cleaner, as shown and described. 